Chaeles d



(No Model.)

' G. D. HOWARD.

STOVE 0R FURNACE GRATE.

Patented July 31, 1888.

Illa/1111111111117 1 UNITED STATES PATENT OFFICE.

CHARLES D. HOWARD, OF SYRACUSE, NEW YORK.

STOVE OR FURNACE GRATE.

SPECIFICATION forming part of Letters Patent No. 387,163, dated July 31,1888. a

Application filed January 19, 1888. Serial No. 261,213.

To all whom it may concern:

Be it known that 1, CHARLES D. HOWARD, of Syracuse, in the county ofOnondaga, in the State of New York, have invented new and usefulImprovements in Stove or Furnace Grates, of which the following, takenin connection with the accompanying drawings, is a full, clear, andexact description.

The object of this invention is to provide a grate which shall bereversible in its position in the stove or furnace and present,witheither side up, a convex or crowning shape, and shall at the same timebe light and easily cast; and to that end my invention consists,essentially, in the mechanism illustrated in the drawings, and whichwill be hereinafter fully described, and specifically set forth in theclaims.

In the annexed drawings, Figure l is a vertical transverse section of afire-pot and ashpit equipped with my improved grate. Fig. 2 is a topplan view of the same. Fig. 3 is a detached plan View of the grate andits supporting-ring, and Fig. 4 is a detached side View of the grate.

Similar letters of reference indicate corresponding parts.

A represents the fire-pot, Othe ash-pit, and D denotes my improvedgrate. This grate I form of two concavo-convex shells, preferably ofsemispherical shape, and with trunnions or pivotal bearings a a atdiametrically-opposite points. Said shell is perforated,as shown, at c cc for the passage of ashes and cinders through it; and in order toinsure the removal of ashes from the interior of the shell, whennecessary, I form the same with slots b b at opposite sides of thetrunnions or pivots and in one and the same plane, preferably betweentltalelsitdjacent edges of the two sections of the s e The ashes beingdumped out of the shell by turning the latter on its pivot, so as tobring the slots 1) b in a vertical plane, to maintain a bank of ashesagainst the inner side of the base of the fire-pot, and thus protect thelatter from excessive heat, I pivot the grate in a ring,

(N0 model.)

9', pivoted in suitable bearings, e 6, formed on the upper part of theash-pit shell, as shown in Fig. l of the drawings.

One of the trunnions of the grate may be extended through its bearing,or the ring 1' may be formed with a projection, S, for the applicationof a lever by which to turn or shake the grate when required. The pivotsof the grate are at right angles to the pivots of the ring, and thus thegrate can be shaken or rocked in two directions at right angles to eachother.

If desired, the grate may be formed of a semi-spherical shell cast withthe trunnions thereon and supported with its convex side upward when inits operative position. This form facilitates the dumping of the grate.

Having described myinvention,what I claim as new, and desire to' secureby Letters Patent, is-- l. The combination, with the ash-pit of a stoveor furnace, of a spherical grate consist ing of two perforatedconcavo-convex shells connected together and provided with trunnions,and having a circumferential slot for the removal of cinders,substantially as specified.

2. The combination, with the ash-pit of a stove or furnace and the ring1', adapted to rest in bearings formed in the upper edge of the ash-pit,of the spherical grate consisting of two perforated concavo -couvexshells connected together and having a circumferential slot for theremoval of cinder-s, one of said shells provided with trunnions adaptedto rest in bearings made in the ring 1', substantially as specified.

In testimony whereof I have hereunto signed my name, in the presence oftwo witnesses, at Syracuse, in the county of Onondaga, in the State ofNew York, this 17th day of January, 1888.

CHARLES D. HOWARD. [L. s.]

Witnesses:

C. L. BENDIXON, GEO. G. COTTON.

